9 letter words:
pepperbox24,
6 letter words:
bopeep12,
bopper12,
pepper12,
popper12,
5 letter words:
boxer14,
opepe9,
preop9,
probe9,
rebop9,
boree7,
4 letter words:
expo13,
prex13,
oxer11,
beep8,
boep8,
peep8,
pepo8,
perp8,
poep8,
pope8,
prep8,
prob8,
prop8,
repp8,
beer6,
bere6,
bore6,
bree6,
peer6,
pere6,
pore6,
pree6,
repo6,
robe6,
rope6,
3 letter words:
box12,
pox12,
exo10,
rex10,
bop7,
pep7,
pop7,
bee5,
bor5,
bro5,
obe5,
ope5,
orb5,
pee5,
per5,
pre5,
pro5,
reb5,
rep5,
rob5,
ere3,
ore3,
ree3,
reo3,
roe3,
2 letter words:
ex9,
ox9,
be4,
bo4,
ob4,
op4,
pe4,
po4,
ee2,
er2,
oe2,
or2,
re2,
